MARC View

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003			KUKTEM
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008			100513t2009 my a f m 000 0 eng d
020			_aTHE0007695(Local)
039		9	_a201905241020 _bfawwaz _c201107132015 _dVLOAD _y201005131259 _zida
040			_aUMP
090			_aTS230 .K64 2009 rs Bc.
100	1		_aKoh, Bee Soon
245	1	0	_aInvestigation of ductile iron 'in ladle' treatment process parameter / _cKoh Bee Soon
246	3		_aInvestigation of ductile iron 'in ladle' treatment process parameter _h[electronic resource]
260			_aKuantan, Pahang : _bUMP, _c2009
300			_axvii, 85 p. : _bill. (some col.) ; _c30 cm. + _e1 computer disc
502			_aProject paper (Bachelor of Mechanical Engineering with Manufacturing Engineering) -- Universiti Malaysia Pahang - 2009
504			_aBibliography : p. 67-69
520	3		_aThis dissertation deals with the parameters which will affect the quality of ductile iron produced using ‘In Ladle treatment’ process. These parameters included the percentage of magnesium ferrosilicon (MgFeSi) used and the castings size. The objectives of this project is to study and understand the inoculation and nodularization of ductile iron using ‘In Ladle treatment’ process, study on how percentage of magnesium ferrosilicon and castings size will influence the quality of ductile iron produced by “In Ladle” treatment process. Ductile iron studied in this dissertation is one of the most important materials in today industries due to its excellent mechanical properties plus low production cost. Therefore, it is important to establish a clear understanding on the parameters involved in producing ductile iron. This dissertation will describe how percentage of magnesium ferrosilicon used, range from 0.2% to 0.6% and casting sizes range from 0.5 kg to 1.5 kg, affects the mechanical properties of ductile iron castings produced using ‘In Ladle treatment’ process. The ductile iron castings are generated using green sand mold. The molten cast iron is transferred from induction furnace to a ladle; then from the ladle to green sand mold. The ladle will have a deep pocket where magnesium ferrosilicon is placed and the height to diameter ratio is 2.5:1. This technique is known as ‘In Ladle treatment’. After solidification, the ductile castings are removed from the mold and undergo analysis. The analysis included hardness, nodule counts, microstructure assessment and determination of iron grade. From the results obtained, it is observed that 0.2% of magnesium ferrosilicon is insufficient to convert cast iron to ductile iron. However, conversion to ductile iron is considered as successful when 0.3% to 0.6% of magnesium ferrosilicon is used and the types of castings produced are ferritic ductile iron. Nodule count and hardness of ductile iron is also influenced by the percentage of magnesium ferrosilicon. The results indicated that 0.4% of magnesium ferrosilicon is the optimum level which will give highest nodule count but lowest hardness number to the ductile iron. Based on the results obtained, lower casting size will result in higher nodule count and vice versa but casting size does not seem to have any obvious relationship with hardness number. The Vicker hardness as well as nodule count assessment concluded that when nodule count increase, the vicker hardness number will decrease.
650		0	_aIron, Nodular
650		0	_aMetals _xDuctility
650		0	_aMetal castings
999			_aVIRTUA40 _c2525 _d2531
999			_aVTLSSORT008002000400090010002450246026003000502050405200650065016502*9992